diff --git a/README.md b/README.md
index cde3dc0..09b2047 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Instant messaging server matrix network.
 
 Yunohost chatroom with matrix : [https://riot.im/app/#/room/#yunohost:matrix.org](https://riot.im/app/#/room/#yunohost:matrix.org)
 
-**Shipped version:** 0.27.2
+**Shipped version:** 0.28.1
 
 Configuration
 -------------
diff --git a/check_process b/check_process
index 4f1b45b..810ba25 100644
--- a/check_process
+++ b/check_process
@@ -11,7 +11,7 @@
         setup_private=0
         setup_public=1
         upgrade=1
-        upgrade=1   from_commit=a62bce7dbc6bc0e1f1b4e872286ff124747ea009
+        upgrade=1   from_commit=a907e39c738997b0e30e9637a5b150bfecf06b18
         upgrade=1   from_commit=f050f88fbfe7bad1bf74d4584ec62ffcf28248e7
         backup_restore=1
         multi_instance=1
@@ -31,7 +31,7 @@
     Level 9=0
     Level 10=0
 ;;; Upgrade options
-	; commit=a62bce7dbc6bc0e1f1b4e872286ff124747ea009
+	; commit=a907e39c738997b0e30e9637a5b150bfecf06b18
 		name=Before multi_instance
 	; commit=f050f88fbfe7bad1bf74d4584ec62ffcf28248e7
 		name=Old version package
diff --git a/conf/armv7.src b/conf/armv7.src
index a58496f..c2ad3b6 100644
--- a/conf/armv7.src
+++ b/conf/armv7.src
@@ -1,6 +1,5 @@
-
-SOURCE_URL=https://github.com/Josue-T/synapse_python_build/releases/download/v0.27.2/matrix-synapse_0.27.2-bin1_armv7l.tar.gz
-SOURCE_SUM=4dfba2316986ad0e3df7d3a14c79006d3f2dc48ef062fc14bb1614f4af99a2fb
+SOURCE_URL=https://github.com/Josue-T/synapse_python_build/releases/download/v0.28.1/matrix-synapse_0.28.1-bin1_armv7l.tar.gz
+SOURCE_SUM=c23baff6b198d80ac8938e95d6d79cd7ff5ca7996119af1ddd2936ee313f9a87
 # (Optional) Program to check the integrity (sha256sum, md5sum...)
 # default: sha256
 SOURCE_SUM_PRG=sha256sum
diff --git a/conf/python_source.src b/conf/python_source.src
index f119177..f8d573b 100644
--- a/conf/python_source.src
+++ b/conf/python_source.src
@@ -1,2 +1,2 @@
-SOURCE_URL=https://github.com/matrix-org/synapse/archive/v0.27.2.tar.gz
-SOURCE_SUM=01080b19f66779335eb68d203c34a4caf681d3c3ed66a1ebd923dcd0833effa2 
+SOURCE_URL=https://github.com/matrix-org/synapse/archive/v0.28.1.tar.gz
+SOURCE_SUM=3f2238172341506614a1b6ba5275bee79b418fee639a7fef3917b1188c515e70
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index a5da53a..572f862 100644
--- a/manifest.json
+++ b/manifest.json
@@ -9,7 +9,7 @@
 		"en": "Instant messaging server who use matrix",
 		"fr": "Un serveur de messagerie instantané basé sur matrix"
 	},
-	"version": "0.27.2~ynh1",
+	"version": "0.28.1~ynh1",
 	"url": "http://matrix.org",
 	"license": "Apache-2.0",
 	"maintainer": {
diff --git a/scripts/install b/scripts/install
index 4fae671..1bde217 100644
--- a/scripts/install
+++ b/scripts/install
@@ -100,7 +100,6 @@ test ! -e /etc/matrix-$app/dh.pem && \
 # WARRNING : theses command are used in INSTALL, UPGRADE, RESTORE
 # For any update do it in all files
 ynh_install_app_dependencies coturn build-essential python2.7-dev libffi-dev python-pip python-setuptools sqlite3 libssl-dev python-virtualenv libxml2-dev libxslt1-dev python-lxml libjpeg-dev libpq-dev postgresql acl
-pip install --upgrade pip
 pip install --upgrade virtualenv
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index cf0f468..9274f69 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -60,7 +60,6 @@ ynh_restore
 # WARRNING : theses command are used in INSTALL, UPGRADE, RESTORE
 # For any update do it in all files
 ynh_install_app_dependencies coturn build-essential python2.7-dev libffi-dev python-pip python-setuptools sqlite3 libssl-dev python-virtualenv libxml2-dev libxslt1-dev python-lxml libjpeg-dev libpq-dev postgresql acl
-pip install --upgrade pip
 pip install --upgrade virtualenv
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index ee771bc..6773c22 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -52,7 +52,7 @@ cli_port=$(ynh_app_setting_get $app cli_port)
 # While the official synapse version is updated, the idea is to test the migration with the new version.
 # If the migration pass we can update this next line with the new synapse package.
 # For more information see comment : https://github.com/YunoHost-Apps/synapse_ynh/pull/40#pullrequestreview-108680051
-if [[ -z $synapse_old_version ]] && [[ $(dpkg -l | grep -c -E "ii.*matrix-synapse.*0.27") != 1 ]] && [[ $(dpkg -l | grep -c -E "ii.*matrix-synapse.*0.26") != 1 ]]
+if [[ -z $synapse_old_version ]] && [[ $(dpkg -l | grep -c -E "ii.*matrix-synapse.*0.27") != 1 ]] && [[ $(dpkg -l | grep -c -E "ii.*matrix-synapse.*0.28") != 1 ]]
 then
 	ynh_die "Update from this synapse version is not available now. You need to wait for the next update."
 fi
@@ -120,7 +120,6 @@ then
     # WARRNING : theses command are used in INSTALL, UPGRADE, RESTORE
     # For any update do it in all files
     ynh_install_app_dependencies coturn build-essential python2.7-dev libffi-dev python-pip python-setuptools sqlite3 libssl-dev python-virtualenv libxml2-dev libxslt1-dev python-lxml libjpeg-dev libpq-dev postgresql acl
-    pip install --upgrade pip
     pip install --upgrade virtualenv
 
     #=================================================
@@ -171,7 +170,6 @@ else
     
     # We set all necessary environement variable to create a python virtualenvironnement. 
     source $final_path/bin/activate
-    pip install --upgrade pip
     pip install --upgrade setuptools
     pip install --upgrade cffi ndg-httpsclient psycopg2 lxml